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Finding the Fourth Proportional to 117,061.89, 175,439.75 and 46,990.41

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Solution

The fourth proportional to 117,061.89, 175,439.75 and 46,990.41 is: 70,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,061.89 : 175,439.75 = 46,990.41 : x
  2. Step 2: Convert to fraction form
    117,061.89/175,439.75 = 46,990.41/x
  3. Step 3: Cross multiply
    117,061.89x = 175,439.75 × 46,990.41
  4. Step 4: Simplify right side
    117,061.89x = 8,243,985,547.85
  5. Step 5: Solve for x
    x = 8,243,985,547.85/117,061.89
  6. Step 6: Final answer
    x = 70,424.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.